Materials Literature
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This paper proposes a new nonlinear broadband model of the power transformer which is both fit for steady state and transient simulation in power system. The model consists of high-frequency module and low-frequency module in parallel. Based on the black-box method, the high-frequency block is built in the form of π-t…
The irradiation-induced hardness change in a commercial P92 ferritic/martensitic steel has been investigated through 3.5MeV Fe-ions irradiations to a dose of 0.29dpa at room temperature, 673K and 973K combined with nanoindentation techniques. The results show that irradiation-induced hardening was observed at the room…
Abstract Review: 1027 refs.
Eco-friendly films have been prepared using various biopolymers and their properties have been improved in order to meet the requirements for appropriate applications. However, the frequently encountered weakness of the properties of most biopolymer film is its water solubility. In this study, the polyvinyl alcohol/ri…
This report described the Impact Test result and Bioactivity Properties of biodegradable Polycaprolactone (PCL) blend with nano- Montmorillonite (MMT) and Hydroxyapatite (HA). The amount of nano-MMT is varies from 2 to 4 by weight % meanwhile the amount of HA is fixed to 10 by weight percentage (wt%). The addition of…
A solid oxide fuel cell (SOFC) is widely recognized to be an attractive energy conversion device owing to its fuel flexibility and high efficiency. Hydrogen-rich stream produced by fuel processor, especially steam reforming process, is used as fuel carrier converting to generate electrical energy. This paper presents…
Molecular modelling methods were used to investigate the structural and interatomic potential of bulk cubic zirconia. To widen the scope of the expected outcome, GULP and CASTEP software were used based on the concept of minimizing the energy of the crystal structure with respect to atomic coordinates. The crystal str…
Phases in the LaxSr2-xCoGaO5+δ (0.5 ≤ x ≤ 1) series adopt anion-vacancy ordered brownmillerite-type structures. The x = 0.5 and x = 0.6 phases show only small deviations from the ideal A2B2O5 brownmillerite stoichiometry and exhibit paramagnetic behaviour above 100 K, with magnetic susceptibilities indicative of a hig…
Diesel engines are widely used in logistics and haulage as vehicular prime movers. In the mechanized and fast-moving forward world of today, the consumption of petroleum products has become an important yardstick of a country’s prosperity. This ever-increasing consumption has led the world to face the twin challenge o…
Defekt mit Vorteilen: Nickelcluster auf verschiedenen Graphensubstraten wurde mit DFT-Rechnungen untersucht. Es zeigt sich, dass Leerstellen die Morphologie der Ni-Nanopartikel bestimmen und die katalytische Aktivität größerer Cluster (Nin mit 5≤n≤10) erhöhen. Kleinere Cluster (n<4) bieten durch eine effiziente Verbre…
The uses of copper and zinc aluminates to capture and convert the CO2 to syn-gas were studied at higher temperatures. The samples of copper and zinc aluminates were prepared by solid-solid fusion method by calcining in air at 900 oC for 3 h. Those samples were characterized by acidity/alkalinity, surface area, XRD pat…
The preparation of core–shell nanoparticles constituted by organic nanocrystals embedded in amorphous organosilicate shells is based on the controlled drying of micrometer-sized droplets produced from the atomization of sol–gel solutions. This leads to the formation of an organosilicate crust at the first stage of the…
Planar flow melt spinning (PFMS) is a rapid solidification process to produce amorphous ribbons for transformer core applications. The present study deals with the development of 3dimensional time-dependent model, for the numerical simulation of ribbon formation during the PFMS process. Space between nozzle wall and t…
In the past century, every component of an optical system has become lighter and smaller, except the lenses. Typical lenses have too few degrees of freedom—just the refractive index, and the front and back surface shapes—to meet the demands of the vast array of modern optical systems which collect, project, or otherwi…
The mechanisms of phosphoryl transfer enzymes have garnered considerable attention. Cyclic AMP-dependent protein kinase (cAPK) catalyzes the transfer of the γ phosphoryl group of ATP to the serine hydroxyl group of a peptide chain. Metal-containing fluoro species have been used as transition-state and ground-state ana…
Composite nanofibers of polyurethane and catalytically active Pd- or Cu-functionalized poly(amido amine) dendrimers were electrospun and subsequently coated with poly( p -xylylene) by the chemical vapor deposition. After removal of the inner polyurethane template matrix, the dendrimers remained encapsulated inside the…
Utilization of rock-like oxide (ROX) fuel in light water reactors for plutonium (Pu) burning was studied by nuclear material balance (NMB) analysis for a case of Japanese phase-out scenario under investigation after the Fukushima accident. For the analysis, the NMB code was developed with features of accurate burn-up…
We investigate the high-frequency behavior of the density of vibrational states in three-dimensional elasticity theory with spatially fluctuating elastic moduli. At frequencies well above the mobility edge, instanton solutions yield an exponentially decaying density of states. The instanton solutions describe excitati…
Abstract The enzymogel nanoparticle made of a magnetic core and polymer brush shell demonstrates a novel type of remote controlled phase‐boundary biocatalysis that involves remotely directed binding to and engulfing insoluble substrates, high mobility, and stability of the catalytic centers. The mobile enzymes reside…
Aluminum (A356)-SiC metal matrix composites were fabricated by using liquid metallurgy route. To improve the interfacial bonding between the Al and SiC, an attempt has been made to coat the SiC particles with Ni and Cu. Electroless process was used for coating the reinforced particle. This surface modification due to…